Vitamin B-12 is found in a variety of foods such as dairy products, fish, shellfish and meat. Vitamin B-12 helps your body make red blood cells and DNA and aids in the function of your nervous system. Since vitamin B-12 is so important, it's necessary to ensure that you receive an adequate amount of it. Taking too much vitamin B-12 can lead to serious side effects, and not taking enough can cause anxiety.
Causes of Anxiety
Low levels of vitamin B-12 can contribute to anxiety and stress, according to the University of Maryland Medical Center. A poor diet can cause a vitamin B-12 deficiency as well as malabsorption disorders and other conditions such as chronic diarrhea. Anxiety tends to cause nervousness, apprehension or fear. The exact source of anxiety may not always be known or recognized, which can add to your anxiety and stress level. If you suffer from frequent anxiety, discuss your symptoms with your doctor.
Vitamin B-12 Uses
Your body needs vitamin B-12 for protein and tissue synthesis. It aids in blood formation and cellular growth and reproduction. If you have a vitamin B-12 deficiency or pernicious anemia, your physician may advise you to take special vitamin B-12 pills or recommend a vitamin B-12 injection. Over-the-counter vitamin B-12 supplements are not sufficient in treating a vitamin B-12 deficiency, according to FamilyDoctor.org.
Injections and Pills
While you are taking prescribed vitamin B-12 injections or pills, your physician will regularly check your vitamin B-12 level to ensure it remains within normal limits. Taking vitamin B-12 can cause certain side effects, and when you take too much, these side effects may intensify or you could experience unusual symptoms. Serious side effects include allergic reaction, chest pain, swelling, rapid weight gain, shortness of breath, and unusual redness, warmth and pain in your arm or leg. Drugs.com notes that even with an overdose of vitamin B-12, it is unlikely that a life-threatening reaction would occur.
Other Side Effects
Side effects of vitamin B-12 include headache, dizziness, weakness, numbness or tingling, nausea, upset stomach and diarrhea. Some minor side effects can also include pain, redness or irritation at the injection site, joint pain, itching, rash or fever.
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